Spring-motor construction



A. ROEMEH. SPRING MOTOR CONSTRUCTION.

APPLICATION FILED MAR. I9, i920. y Lggg@ Patented DOO. 28,19%.

i@ NB Ewew ,ATZLW @GWW LIITIII IIIITI I l I iso ARTHUR ROEMER, OF CHICAGO, ILLINOIS, ASSG-NOR TO REMEB MANUFACTURING COMPANY, 0F CHICAGO, LLINCS, CORPORATICN 0F ELLINOIS.Y

SPRING-MOTOR CONSTRUCTION.

maaier.

Specification of Letters Patent.

Patented Dec. 2S, 192th T 0 allee/1,0m# may concern Be it known that I, ARTHUR Romina, a citizen of the United States of America, and a resident of Chicago, lllinois, have invented a certain new and useful Improvement in Spring-Motor Construction, of which the following is a specification.

This invention relates to spring barrels for spring motors in general, but more es pecially to those which are employed in talking machines and phonographs and similar devices. The invention relates more particularly to spring barrels of this kind in which two springs are employed, with a wall or other separating medium between them, whereby certain advantages, which are well understood, are obtained and certain beneficial results produced, as distinguished from a motor having only one spring.

Generally stated, therefore, the Object of the invention is to provide a novel and improved construction whereby two springs are inclosed in the barrel or casing, with a perforated plate or other suitable means between them, in a manner tending to insure satisfactory results, as will hereinafter more fully appear. n

Another object is to obviate the necessity of using certain features of construction heretofore considered necessary or desirable in a spring barrel for this particular purpose.

lt is also an object to provide certain details and features of construction tending to increase the general eiiiciency and the desirability of a spring barrel of this particular character.

To these and other useful ends the invention consists in matters hereinafter set forth and claimed, and shown in the accompanying drawing, in which- Figure 1 is a side elevation of a spring barrel embodying the principles of the invention.

Fig. 2 is an end elevation of said springbarrel.

F ig. 3 is a section on line 3 3 in F ig. 2.

Fig. el is a face view of the perforated plate or disk which is interposed between the two springs.

As thus illustrated, the invention comprises a cylinder l of any suitable metal, heads or end walls 2 formed like caps to tightly fit upon the ends of said cylinder,

and a shaft 3 that extends through the central openings 4 formed in the said caps or end walls. IThe springs 5 and 6 are of the ordinary clock spring type, of course, and have their outer ends secured by rivets 7 to the wall of the cylinder l, while the other or inner ends of said springs are secured by rivets 8 to the sleeves 9 which inclose the shaft or post 3, whereby the rotation of one tubular sleeve will wind up the springs, in a manner that will be readily understood. A perforated plate or disk l0 is interposed between the two sleeves, loosely, as shown, or in any desired manner; said plate having perforations or openings 1l, and a central opening l2 for the said shaft.

ln practice, when the motor is in use, the grease or lubricant with which the spring barrel casing is ordinarily iilled, can pass readily from one side of the plate l() to the other, inasmuch as this lubricant will flow freely through the openings 1l from one spring to the other, when the springs are wound up tight. This, therefore, tends to prevent the escape of the lubricant through the openings l in the caps or end walls. `With the construction shown and described, the spring barrel cylinderis made in one piece, but at the same time the interior of the casing is divided into two compart ments, so that the two springs are separated in the desired manner, but without prevent ing the lubricant from flowing freely from the spring in one compartment to the spring in the other compartment. 'When one sleeve 9 is rotated, one of the springs is thereby wound up, and as soon as the torque becomessuiicient the spring barrel casing is rotated to wind up the other spring, the other sleeve 9 remaining stationary. rlhis general arrangement of a plurality of springs, so that they are wound in series, so to speak, is old and well known, and needs no further description. lt will be understood, of course, that the sleeves 9 have their outer ends connected to other instrumentalities, or to other elements of the m0- tor, in any suitable or desired manner.

What I claim as my invention is l. ln a spring motor, a spring barrel comprising a one-piece straight cylinder, a central support, a pair of springs in said cylinder, means for securing the outer ends of the springs to the cylinder, means for supporting the inner ends of the springs on said support, a `one-pieee head or end wall for, each end of said cylinder, and means interposed Vbetween the two springs to divide 'the interior ofv said cylinder into two intercommunieating compartments, one for each spring, for housing and lubricating the springs thus separatelyV inclosed, 'so Vthat each of the two springs is wound and unwound in its own compartment.

2. A structure as specilied in claiin l, said means for separating the two springs consisting of a plate or disk inserted in the cylinder.

- 3. A structure as specified in claim l, said meansfor separating the two springs having aV plurality of openings through which a lubricant can flow either way from one springv to the other during the operation of the motor;

al. A structure as specified in claim 1, said means for separating the two springs oomprising a plate or disk loosely inserted in the cylinder and provided with openings through which a lubricant can flow from one compartment into the other.

5. In a spring motor, the combination of a pair of springs, means for housing said springs, and means for separating one spring from the other and providing means whereby aV lubricant is orced'bacl; and forth from one sprinO' to the other.

ATHUR ROEMER. 

